CVE-2026-107395 Indico: Missing access check in legacy session export API
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-107395?
CVE-2026-107395 is a medium-severity vulnerability in indico, published on 8 Oct 2026.
Official description
Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to 3.3.13, an authenticated user can misuse the legacy session export API to retrieve details for a restricted session without access to that session, as long as the containing event is accessible. The missing access check can disclose session metadata such as the title, description, and conveners. This issue is fixed in version 3.3.13.
Weakness: CWE-862
Which versions are affected by CVE-2026-107395?
3 open source packages ship an affected version, including indico.
| Package | Affected | Fixed in |
|---|---|---|
indico PyPI | All versions | 3.3.13 |
indico PyPI | All versions | 3.3.13 |
indico PyPI | All versions | 3.3.13 |
How do I fix CVE-2026-107395?
Upgrade indico to 3.3.13 or later.
Is CVE-2026-107395 being exploited?
There is no known exploitation of CVE-2026-107395 in the wild and no public exploit code.
Sources
Also known as GHSA-6p4f-j8j6-463q, PYSEC-2026-4226.